void m_hookup_PropChangedCompleted()
{
try
{
if (m_rootb.Site != null)
{
m_rootb.MakeTextSelection(m_ihvoRoot, m_rgvsli.Length, m_rgvsli, m_tagTextProp,
m_cpropPrevious, m_ich, m_ich, m_wsAlt, m_fAssocPrev, -1, m_selProps, true);
}
}
catch (COMException)
{
try
{
// Try again making the selection in a prompt
m_rootb.MakeTextSelection(m_ihvoRoot, m_rgvsli.Length, m_rgvsli, SimpleRootSite.kTagUserPrompt,
m_cpropPrevious, m_ich, m_ich, m_wsAlt, m_fAssocPrev, -1, m_selProps, true);
}
catch (COMException)
{
Debug.WriteLine("Failed to make a selection at end of UOW.");
// Ignore any errors that happen when trying to set the selection. We really don't
// want a program to crash if it fails.
}
}
}
/// <summary>
/// Insert "()" into the rootbox at the current selection, then back up the selection
/// to be between the parentheses.
/// </summary>
/// <param name="rootb"></param>
public static void InsertOptionalItem(IVwRootBox rootb)
{
rootb.OnChar('(');
rootb.OnChar(')');
// Adjust the selection to be between the parentheses.
var vwsel = rootb.Selection;
var cvsli = vwsel.CLevels(false);
// CLevels includes the string property itself, but AllTextSelInfo doesn't need it.
cvsli--;
int ihvoRoot;
int tagTextProp;
int cpropPrevious;
int ichAnchor;
int ichEnd;
int ws;
bool fAssocPrev;
int ihvoEnd;
ITsTextProps ttp;
var rgvsli = SelLevInfo.AllTextSelInfo(vwsel, cvsli,
out ihvoRoot, out tagTextProp, out cpropPrevious, out ichAnchor, out ichEnd,
out ws, out fAssocPrev, out ihvoEnd, out ttp);
Debug.Assert(ichAnchor == ichEnd);
Debug.Assert(ichAnchor > 0);
--ichEnd;
--ichAnchor;
rootb.MakeTextSelection(ihvoRoot, cvsli, rgvsli, tagTextProp, cpropPrevious,
ichAnchor, ichEnd, ws, fAssocPrev, ihvoEnd, ttp, true);
}
internal static IVwSelection GetSelAtStartOfWs(IVwRootBox rootBox, int flid, int wsIndex, IWritingSystem ws)
{
try
{
return rootBox.MakeTextSelection(0, 0, null, flid, wsIndex, 0, 0, (ws == null) ? 0 : ws.Handle, false, -1, null, false);
}
catch (COMException)
{
return null; // can fail if we are hiding an empty WS.
}
}
internal static IVwSelection GetSelAtStartOfWs(IVwRootBox rootBox, int flid, int wsIndex, IWritingSystem ws)
{
try
{
return(rootBox.MakeTextSelection(0, 0, null, flid, wsIndex, 0, 0, (ws == null) ? 0 : ws.Handle, false, -1, null, false));
}
catch (COMException)
{
return(null); // can fail if we are hiding an empty WS.
}
}
/// <summary>
/// We consciously don't do the usual destructor stuff. There's nothing useful to do unless properly
/// disposed.
/// </summary>
public void Dispose()
{
if (m_rootbox != null && m_rootbox.Selection == null && rgvsli != null)
{
// The likely reason for this is that the backspace deleted the last character in a prompt and we
// re-inserted the prompt. Try to re-select the whole prompt. Don't worry if this fails.
try
{
m_rootbox.MakeTextSelection(ihvoRoot, cvsli, rgvsli,
SimpleRootSite.kTagUserPrompt, cpropPrevious, 0, 0,
ws, false, -1, ttp, true);
}
catch (Exception)
{
}
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
///
/// </summary>
/// ------------------------------------------------------------------------------------
public override ITsString UpdateProp(IVwSelection vwsel, int hvo, int tag, int frag, ITsString tssVal)
{
CheckDisposed();
Debug.Assert(tag == kTagUserPrompt, "Got an unexpected tag");
// Get information about current selection
int cvsli = vwsel.CLevels(false);
cvsli--; // CLevels includes the string property itself, but AllTextSelInfo doesn't need it.
int ihvoRoot;
int tagTextProp;
int cpropPrevious;
int ichAnchor;
int ichEnd;
int ihvoEnd;
bool fAssocPrev;
int ws;
ITsTextProps ttp;
SelLevInfo[] rgvsli = SelLevInfo.AllTextSelInfo(vwsel, cvsli,
out ihvoRoot, out tagTextProp, out cpropPrevious, out ichAnchor, out ichEnd,
out ws, out fAssocPrev, out ihvoEnd, out ttp);
// get para info
StTxtPara para = new StTxtPara(Cache, hvo);
// ITsTextProps props = StyleUtils.CharStyleTextProps(null, Cache.DefaultVernWs);
//
// // set string info based on the para info
// ITsStrBldr bldr = (ITsStrBldr)tssVal.GetBldr();
// bldr.SetProperties(0, bldr.Length, props);
// tssVal = bldr.GetString();
// Add the text the user just typed to the paragraph - this destroys the selection
// because we replace the user prompt.
para.Contents.UnderlyingTsString = tssVal;
// now restore the selection
m_rootb.MakeTextSelection(ihvoRoot, cvsli, rgvsli,
(int)StTxtPara.StTxtParaTags.kflidContents, cpropPrevious, ichAnchor, ichEnd,
Cache.DefaultVernWs, fAssocPrev, ihvoEnd, null, true);
return(tssVal);
}
// Regenerate the display of object m_ihvo of property m_virtualTagObj of object m_hvoParent,
// assuming that the current selection is within it and that it will be displayed using
// newTagName.
private void SwitchTagAndFixSel(int newTagName, IVwRootBox rootb)
{
IVwSelection sel = rootb.Selection;
int cvsli = 0;
// Get selection information to determine where the user is typing.
int ihvoRoot = 0;
int tagTextProp = 0;
int cpropPrevious = 0;
int ichAnchor = 0;
int ichEnd = 0;
int ihvoEnd = 0;
int ws = 0;
ITsTextProps ttp = null;
bool fAssocPrev = false;
SelLevInfo[] rgvsli = null;
if (sel != null)
{
// Next step will destroy selection. Save info to install new one.
cvsli = sel.CLevels(false) - 1;
// Get selection information to determine where the user is typing.
rgvsli = SelLevInfo.AllTextSelInfo(sel, cvsli,
out ihvoRoot, out tagTextProp, out cpropPrevious, out ichAnchor, out ichEnd,
out ws, out fAssocPrev, out ihvoEnd, out ttp);
}
// This needs to be done even if we don't have a selection.
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, m_hvoParent, m_virtualTagObj, m_ihvoTa, 1, 1);
if (sel != null) // nb old sel is now invalid, but should be OK to compare to null.
{
// Make a new selection. The critical difference is that, whereas tagTextProp was the other name property,
// now that this is the active object the property displayed for its name is newTagName.
try
{
rootb.MakeTextSelection(ihvoRoot, cvsli, rgvsli, newTagName, cpropPrevious, ichAnchor, ichEnd, ws,
fAssocPrev, ihvoEnd, null, true);
}
catch
{
// Eat any exceptions.
}
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// We override this method to make a selection in all of the views that are in a
/// synced group. This fixes problems where the user changes the selection in one of
/// the slaves, but the master is not updated. Thus the view is not scrolled as the
/// groups scroll position only scrolls the master's selection into view. (TE-3380)
/// </summary>
/// <param name="rootb">The rootbox whose selection changed</param>
/// <param name="vwselNew">The new selection</param>
/// ------------------------------------------------------------------------------------
protected override void HandleSelectionChange(IVwRootBox rootb, IVwSelection vwselNew)
{
CheckDisposed();
// Guard against recursive calls, typically caused by the MakeTextSelection call below.
if (m_fInSelectionChanged)
{
return;
}
try
{
m_fInSelectionChanged = true;
// Make sure we're not handling MouseDown since it
// handles SelectionChanged and DoSelectionSideEffects.
// No need to do it again.
if (!ReadOnlySelect && !m_fHandlingMouseUp)
{
if (vwselNew == null)
{
return;
}
// The selection can apparently be invalid on rare occasions, and will lead
// to a crash below trying to call CLevels. See LT-10301. Treat it the
// same as a null selection.
if (!vwselNew.IsValid)
{
return;
}
base.HandleSelectionChange(rootb, vwselNew);
m_wantScrollIntoView = false; // It should already be visible here.
// Collect all the information we can about the selection.
int ihvoRoot = 0;
int tagTextProp = 0;
int cpropPrevious = 0;
int ichAnchor = 0;
int ichEnd = 0;
int ws = 0;
bool fAssocPrev = false;
int ihvoEnd = 0;
ITsTextProps ttpBogus = null;
SelLevInfo[] rgvsli = new SelLevInfo[0];
int cvsli = vwselNew.CLevels(false) - 1;
if (cvsli < 0)
{
return; // Nothing useful we can do.
}
// Main array of information retrived from sel that made combo.
rgvsli = SelLevInfo.AllTextSelInfo(vwselNew, cvsli,
out ihvoRoot, out tagTextProp, out cpropPrevious, out ichAnchor, out ichEnd,
out ws, out fAssocPrev, out ihvoEnd, out ttpBogus);
//for (int i = 0; i < cvsli; ++i)
//{
// Debug.Write(String.Format("XmlBrowseView.SelectionChanged(): rgvsli[{0}].hvo={1}, ivho={2}, tag={3}, cpropPrevious={4}, ich={5}, ws={6}",
// i, rgvsli[i].hvo, rgvsli[i].ihvo, rgvsli[i].tag, rgvsli[i].cpropPrevious, rgvsli[i].ich, rgvsli[i].ws));
// Debug.WriteLine(String.Format("; ihvoRoot={0}, ihvoEnd={1}, ichEnd={2}",
// ihvoRoot, ihvoEnd, ichEnd));
//}
// The call to the base implementation can invalidate the selection. It's rare, but quite
// possible. (See the comment in EditingHelper.SelectionChanged() following
// Commit().) This test fixes LT-4731.
if (vwselNew.IsValid)
{
DoSelectionSideEffects(vwselNew);
}
else
{
// But if the selection is invalid, and we do nothing about it, then we can
// type only one character at a time in a browse cell because we no longer
// have a valid selection. See LT-6443.
rootb.MakeTextSelection(ihvoRoot, cvsli, rgvsli, tagTextProp, cpropPrevious,
ichAnchor, ichEnd, ws, fAssocPrev, ihvoEnd, ttpBogus, true);
DoSelectionSideEffects(rootb.Selection);
}
m_wantScrollIntoView = true;
}
}
finally
{
m_fInSelectionChanged = false;
}
}
// Regenerate the display of object m_ihvo of property m_virtualTagObj of object m_hvoParent,
// assuming that the current selection is within it and that it will be displayed using
// newTagName.
private void SwitchTagAndFixSel(int newTagName, IVwRootBox rootb)
{
IVwSelection sel = rootb.Selection;
int cvsli = 0;
// Get selection information to determine where the user is typing.
int ihvoRoot = 0;
int tagTextProp = 0;
int cpropPrevious = 0;
int ichAnchor = 0;
int ichEnd = 0;
int ihvoEnd = 0;
int ws = 0;
ITsTextProps ttp = null;
bool fAssocPrev = false;
SelLevInfo[] rgvsli = null;
if (sel != null)
{
// Next step will destroy selection. Save info to install new one.
cvsli = sel.CLevels(false) - 1;
// Get selection information to determine where the user is typing.
rgvsli = SelLevInfo.AllTextSelInfo(sel, cvsli,
out ihvoRoot, out tagTextProp, out cpropPrevious, out ichAnchor, out ichEnd,
out ws, out fAssocPrev, out ihvoEnd, out ttp);
}
// This needs to be done even if we don't have a selection.
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, m_hvoParent, m_virtualTagObj, m_ihvoTa, 1, 1);
if (sel != null) // nb old sel is now invalid, but should be OK to compare to null.
{
// Make a new selection. The critical difference is that, whereas tagTextProp was the other name property,
// now that this is the active object the property displayed for its name is newTagName.
try
{
rootb.MakeTextSelection(ihvoRoot, cvsli, rgvsli, newTagName, cpropPrevious, ichAnchor, ichEnd, ws,
fAssocPrev, ihvoEnd, null, true);
}
catch
{
// Eat any exceptions.
}
}
}
/// <summary>
/// Insert "()" into the rootbox at the current selection, then back up the selection
/// to be between the parentheses.
/// </summary>
/// <param name="rootb"></param>
public static void InsertOptionalItem(IVwRootBox rootb)
{
rootb.OnChar((int)'(');
rootb.OnChar((int)')');
// Adjust the selection to be between the parentheses.
IVwSelection vwsel = rootb.Selection;
int cvsli = vwsel.CLevels(false);
// CLevels includes the string property itself, but AllTextSelInfo doesn't need it.
cvsli--;
int ihvoRoot;
int tagTextProp;
int cpropPrevious;
int ichAnchor;
int ichEnd;
int ws;
bool fAssocPrev;
int ihvoEnd;
ITsTextProps ttp;
SelLevInfo[] rgvsli = SelLevInfo.AllTextSelInfo(vwsel, cvsli,
out ihvoRoot, out tagTextProp, out cpropPrevious, out ichAnchor, out ichEnd,
out ws, out fAssocPrev, out ihvoEnd, out ttp);
Debug.Assert(ichAnchor == ichEnd);
Debug.Assert(ichAnchor > 0);
--ichEnd;
--ichAnchor;
rootb.MakeTextSelection(ihvoRoot, cvsli, rgvsli, tagTextProp, cpropPrevious,
ichAnchor, ichEnd, ws, fAssocPrev, ihvoEnd, ttp, true);
}
/// -----------------------------------------------------------------------------------
/// <summary>
/// Make a range selection based upon our saved selection info.
/// NOTE: Installing the selection may trigger side effects that will invalidate the selection.
/// Callers should check to make sure the selection is still valid before using it.
/// </summary>
/// <param name="rootBox"></param>
/// <param name="fInstall"></param>
/// <exception cref="Exception">throws if unable to make an end selection</exception>
/// <returns>a range selection (could become invalid as a side-effect of installing.)</returns>
/// -----------------------------------------------------------------------------------
public IVwSelection MakeRangeSelection(IVwRootBox rootBox, bool fInstall)
{
int iAnchor = 0;
int iEnd = 1;
if (!m_fEndSet)
{ // No end information set, so use iAnchor as end
iEnd = iAnchor;
}
if (m_selInfo[iEnd] == null)
{
m_selInfo[iEnd] = new SelInfo(m_selInfo[iAnchor]);
}
// This change was proposed in change set 37331 but it's not clear what crash sometimes happens if it's not done.
// Apparently it doesn't always crash because some TeDllTests fail if we do this.
// Don't make a selection if the property indicates not to: see comment about -2 in InterlinDocForAnalysis.HandleSelectionChange
//if (m_selInfo[iAnchor].tagTextProp == -2)
// return null; // crashes if allowed to continue
// we want to pass fInstall=false to MakeTextSelection so that it doesn't notify
// the RootSite of the selection change.
IVwSelection vwSelAnchor;
try
{
vwSelAnchor = rootBox.MakeTextSelection(
m_selInfo[iAnchor].ihvoRoot, m_selInfo[iAnchor].rgvsli.Length,
m_selInfo[iAnchor].rgvsli, m_selInfo[iAnchor].tagTextProp,
m_selInfo[iAnchor].cpropPrevious, m_selInfo[iAnchor].ich, m_selInfo[iAnchor].ich,
m_selInfo[iAnchor].ws, m_selInfo[iAnchor].fAssocPrev, m_selInfo[iAnchor].ihvoEnd,
null, false);
}
catch (Exception e)
{
Debug.Assert(m_selInfo[iEnd].rgvsli.Length > 0 || m_selInfo[iAnchor].rgvsli.Length == 0,
"Making the anchor selection failed, this is probably an empty editable field.");
throw;
}
IVwSelection vwSelEnd;
try
{
vwSelEnd = rootBox.MakeTextSelection(
m_selInfo[iEnd].ihvoRoot, m_selInfo[iEnd].rgvsli.Length,
m_selInfo[iEnd].rgvsli, m_selInfo[iEnd].tagTextProp,
m_selInfo[iEnd].cpropPrevious, m_selInfo[iEnd].ich, m_selInfo[iEnd].ich,
m_selInfo[iEnd].ws, m_selInfo[iEnd].fAssocPrev, m_selInfo[iEnd].ihvoEnd,
null, false);
}
catch (Exception)
{
Debug.Assert(m_selInfo[iEnd].rgvsli.Length > 0 || m_selInfo[iAnchor].rgvsli.Length == 0,
"The anchor has rgvsli but the end does not; since making the end selection failed, this is probably a mistake.");
throw;
}
return rootBox.MakeRangeSelection(vwSelAnchor, vwSelEnd, fInstall);
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// We override this method to make a selection in all of the views that are in a
/// synced group. This fixes problems where the user changes the selection in one of
/// the slaves, but the master is not updated. Thus the view is not scrolled as the
/// groups scroll position only scrolls the master's selection into view. (TE-3380)
/// </summary>
/// <param name="rootb">The rootbox whose selection changed</param>
/// <param name="vwselNew">The new selection</param>
/// ------------------------------------------------------------------------------------
protected override void HandleSelectionChange(IVwRootBox rootb, IVwSelection vwselNew)
{
CheckDisposed();
// Guard against recursive calls, typically caused by the MakeTextSelection call below.
if (m_fInSelectionChanged)
return;
try
{
m_fInSelectionChanged = true;
// Make sure we're not handling MouseDown since it
// handles SelectionChanged and DoSelectionSideEffects.
// No need to do it again.
if (!ReadOnlySelect && !m_fHandlingMouseUp)
{
if (vwselNew == null)
return;
// The selection can apparently be invalid on rare occasions, and will lead
// to a crash below trying to call CLevels. See LT-10301. Treat it the
// same as a null selection.
if (!vwselNew.IsValid)
return;
base.HandleSelectionChange(rootb, vwselNew);
m_wantScrollIntoView = false; // It should already be visible here.
// Collect all the information we can about the selection.
int ihvoRoot = 0;
int tagTextProp = 0;
int cpropPrevious = 0;
int ichAnchor = 0;
int ichEnd = 0;
int ws = 0;
bool fAssocPrev = false;
int ihvoEnd = 0;
ITsTextProps ttpBogus = null;
SelLevInfo[] rgvsli = new SelLevInfo[0];
int cvsli = vwselNew.CLevels(false) - 1;
if (cvsli < 0)
return;// Nothing useful we can do.
// Main array of information retrived from sel that made combo.
rgvsli = SelLevInfo.AllTextSelInfo(vwselNew, cvsli,
out ihvoRoot, out tagTextProp, out cpropPrevious, out ichAnchor, out ichEnd,
out ws, out fAssocPrev, out ihvoEnd, out ttpBogus);
//for (int i = 0; i < cvsli; ++i)
//{
// Debug.Write(String.Format("XmlBrowseView.SelectionChanged(): rgvsli[{0}].hvo={1}, ivho={2}, tag={3}, cpropPrevious={4}, ich={5}, ws={6}",
// i, rgvsli[i].hvo, rgvsli[i].ihvo, rgvsli[i].tag, rgvsli[i].cpropPrevious, rgvsli[i].ich, rgvsli[i].ws));
// Debug.WriteLine(String.Format("; ihvoRoot={0}, ihvoEnd={1}, ichEnd={2}",
// ihvoRoot, ihvoEnd, ichEnd));
//}
// The call to the base implementation can invalidate the selection. It's rare, but quite
// possible. (See the comment in EditingHelper.SelectionChanged() following
// Commit().) This test fixes LT-4731.
if (vwselNew.IsValid)
{
DoSelectionSideEffects(vwselNew);
}
else
{
// But if the selection is invalid, and we do nothing about it, then we can
// type only one character at a time in a browse cell because we no longer
// have a valid selection. See LT-6443.
rootb.MakeTextSelection(ihvoRoot, cvsli, rgvsli, tagTextProp, cpropPrevious,
ichAnchor, ichEnd, ws, fAssocPrev, ihvoEnd, ttpBogus, true);
DoSelectionSideEffects(rootb.Selection);
}
m_wantScrollIntoView = true;
}
}
finally
{
m_fInSelectionChanged = false;
}
}
/// <summary>
/// This is the real guts of type-ahead. It is called by the client whenever a key is pressed.
/// It returns true if it handled the key press, which it does if the current selection
/// is in a type-ahead name property.
/// </summary>
/// <param name="ehelp"></param>
/// <param name="e"></param>
/// <param name="modifiers"></param>
/// <param name="vwGraphics"></param>
/// <returns></returns>
public virtual bool OnKeyPress(EditingHelper ehelp, KeyPressEventArgs e, Keys modifiers, IVwGraphics vwGraphics)
{
IVwRootBox rootb = ehelp.Callbacks.EditedRootBox;
if (rootb == null) // If we don't have a root box, can't do anything interesting.
{
return(false);
}
IVwSelection sel = rootb.Selection;
if (sel == null) // nothing interesting to do without a selection, either.
{
return(false);
}
ITsString tssA, tssE;
int ichA, ichE, hvoObjA, hvoObjE, tagA, tagE, ws;
bool fAssocPrev;
// Enhance JohnT: what we're really trying to do here is confirm that the selection is
// all in one string property. We could readily have a method in the selection interface to tell us that.
sel.TextSelInfo(false, out tssA, out ichA, out fAssocPrev, out hvoObjA, out tagA, out ws);
if (tagA != m_taTagName)
{
return(false); // selection not anchored in a type-ahead name property.
}
sel.TextSelInfo(true, out tssE, out ichE, out fAssocPrev, out hvoObjE, out tagE, out ws);
int cch = tssA.Length;
// To do our type-ahead trick, both ends of the seleciton must be in the same string property.
// Also, we want the selection to extend to the end of the name.
// Enhance JohnT: poupu list may not depend on selection extending to end.
if (tagE != m_taTagName || hvoObjE != hvoObjA || cch != tssE.Length || Math.Max(ichA, ichE) != cch)
{
return(false); // not going to attempt type-ahead behavior
}
// if the key pressed is a backspace or del, prevent smart completion,
// otherwise we are likely to put back what the user deleted.
// Review JohnT: do arrow keys come through here? What do we do if so?
int charT = Convert.ToInt32(e.KeyChar);
if (charT == (int)Keys.Back || charT == (int)Keys.Delete)
{
return(false); // normal key handling will just delete selection. // Review: should backspace delete one more?
}
// OK, we're in a type-ahead situation. First step is to let normal editing take place.
ehelp.OnKeyPress(e, modifiers);
e.Handled = true;
// Now see what we have. Note that our old selection is no longer valid.
sel = rootb.Selection;
if (sel == null)
{
return(true); // can't be smart, but we already did the keypress.
}
int cvsli = sel.CLevels(false);
// CLevels includes the string prop itself, but AllTextSelInfo does not need it.
cvsli--;
// Get selection information to determine where the user is typing.
int ihvoObj;
int tagTextProp;
int cpropPrevious, ichAnchor, ichEnd, ihvoEnd;
ITsTextProps ttp;
SelLevInfo[] rgvsli = SelLevInfo.AllTextSelInfo(sel, cvsli,
out ihvoObj, out tagTextProp, out cpropPrevious, out ichAnchor, out ichEnd,
out ws, out fAssocPrev, out ihvoEnd, out ttp);
if (tagTextProp != m_taTagName || ichAnchor != ichEnd || ihvoEnd != -1 || cvsli < 1)
{
return(true); // something bizarre happened, but keypress is done.
}
int hvoLeaf = rgvsli[0].hvo;
// Get the parent object we will modify.
// (This would usually work, but not if the parent object is the root of the whole display,
// as in a simple atomic ref type ahead slice.
//int hvoParent = rgvsli[1].hvo; // object whose reference property we are setting.)
int tagParent, cpropPreviousDummy, ihvo;
IVwPropertyStore vps;
int hvoParent;
sel.PropInfo(false, 1, out hvoParent, out tagParent, out ihvo, out cpropPreviousDummy, out vps);
if (hvoParent != m_hvoParent)
{
return(true); // another bizarre unexpected event.
}
// This is what the name looks like after the keypress.
ITsString tssTyped = m_sda.get_StringProp(hvoLeaf, m_taTagName);
// Get the substitute. This is where the actual type-ahead behavior happens. Sets hvoNewRef to 0 if no match.
ICmObject objNewRef;
ITsString tssLookup = Lookup(tssTyped, out objNewRef);
int hvoNewRef = (objNewRef != null) ? objNewRef.Hvo : 0;
IVwCacheDa cda = m_sda as IVwCacheDa;
if (hvoNewRef == 0 && tssTyped.Length > 0)
{
// No match...underline string in red squiggle.
ITsStrBldr bldr = tssLookup.GetBldr();
bldr.SetIntPropValues(0, tssLookup.Length, (int)FwTextPropType.ktptUnderline,
(int)FwTextPropVar.ktpvEnum, (int)FwUnderlineType.kuntSquiggle);
bldr.SetIntPropValues(0, tssLookup.Length, (int)FwTextPropType.ktptUnderColor,
(int)FwTextPropVar.ktpvDefault, (int)ColorUtil.ConvertColorToBGR(Color.Red));
tssLookup = bldr.GetString();
}
// Don't rely on sel from here on.
if (hvoNewRef != hvoLeaf)
{
m_hvoTa = hvoNewRef; // Before we replace in the prop, so it gets displayed using special ta prop.
switch (m_type)
{
case CellarPropertyType.ReferenceAtomic:
if (m_hvoParent != 0) // I think it always is, except when loss of focus during debugging causes problems.
{
// If nothing matched, set the real property to null and the fake one to kbaseFakeObj.
// Otherwise set both to the indicated object.
m_sda.SetObjProp(m_hvoParent, m_tag, hvoNewRef); // Review: do we want to set the real thing yet?
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, m_hvoParent, m_tag, 0, 1, 1);
if (hvoNewRef == 0)
{
hvoNewRef = m_hvoTa = kBaseFakeObj; // use in fake so we can display something.
}
cda.CacheObjProp(m_hvoParent, m_virtualTagObj, hvoNewRef); // Change the fake property
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, m_hvoParent, m_virtualTagObj, 0, 1, 1);
}
break;
case CellarPropertyType.ReferenceSequence:
case CellarPropertyType.ReferenceCollection:
// Several cases, depending on whether we got a match and whether hvoLeaf is the dummy object
// 1. match on dummy: insert appropriate real object, change dummy name to empty.
// 2. match on non-dummy: replace old object with new
// 3: non-match: do nothing. (Even if not looking at the fake object, we'll go on using the
// actual object as a base for the fake name, since it's displayed only for the active position.)
if (hvoNewRef == 0)
{
break; // case 3
}
if (hvoLeaf == kBaseFakeObj)
{ // case 1
// The fake object goes back to being an empty name at the end of the list.
ITsStrBldr bldr = tssLookup.GetBldr();
bldr.ReplaceTsString(0, bldr.Length, null); // makes an empty string in correct ws.
cda.CacheStringProp(kBaseFakeObj, m_taTagName, bldr.GetString());
// Insert the new object before the fake one in fake prop and at end of real seq.
// Include the fake object in the replace to get it redisplayed also.
cda.CacheReplace(m_hvoParent, m_virtualTagObj, m_ihvoTa, m_ihvoTa + 1, new int[] { hvoNewRef, kBaseFakeObj }, 2);
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, m_hvoParent, m_virtualTagObj, m_ihvoTa, 2, 1);
m_sda.Replace(m_hvoParent, m_tag, m_ihvoTa, m_ihvoTa, new int[] { hvoNewRef }, 1);
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, m_hvoParent, m_tag, m_ihvoTa, 1, 0);
}
else
{ // case 2
// Replace the object being edited with the indicated one in both props.
cda.CacheReplace(m_hvoParent, m_virtualTagObj, m_ihvoTa, m_ihvoTa + 1, new int[] { hvoNewRef }, 1);
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, m_hvoParent, m_virtualTagObj, m_ihvoTa, 1, 1);
m_sda.Replace(m_hvoParent, m_tag, m_ihvoTa, m_ihvoTa + 1, new int[] { hvoNewRef }, 1);
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, m_hvoParent, m_tag, m_ihvoTa, 1, 1);
}
break;
default:
throw new Exception("unsupported property type for type-ahead chooser");
}
}
cda.CacheStringProp(hvoNewRef, m_taTagName, tssLookup);
m_sda.PropChanged(null, (int)PropChangeType.kpctNotifyAll, hvoNewRef, m_taTagName, 0, tssLookup.Length, tssTyped.Length);
// Make a new selection, typically the range that is the bit added to the typed string.
// no change is needed to rgvsli because it's the same object index in the same property of the same parent.
sel = rootb.MakeTextSelection(ihvoObj, cvsli, rgvsli, m_taTagName, cpropPrevious, ichAnchor,
tssLookup.Length, ws, true, -1, null, true);
return(true);
}
/// <summary>
/// Makes a text selection out of the given locationInfo.
/// </summary>
/// <param name="rootb">The rootb.</param>
/// <param name="li">The selection path info</param>
/// <param name="fInstall">if true, install the selection</param>
/// <returns></returns>
public static IVwSelection MakeTextSelection(IVwRootBox rootb, CollectorEnv.LocationInfo li, bool fInstall)
{
if (rootb == null || li == null)
return null;
return rootb.MakeTextSelection(0, li.m_location.Length, li.m_location, li.m_tag,
li.m_cpropPrev, li.m_ichMin, li.m_ichMin, li.m_ws, false, -1, null, fInstall);
}
/// -----------------------------------------------------------------------------------
/// <summary>
/// Make a range selection based upon our saved selection info.
/// NOTE: Installing the selection may trigger side effects that will invalidate the selection.
/// Callers should check to make sure the selection is still valid before using it.
/// </summary>
/// <param name="rootBox"></param>
/// <param name="fInstall"></param>
/// <returns>a range selection (could become invalid as a side-effect of installing.)</returns>
/// -----------------------------------------------------------------------------------
public IVwSelection MakeRangeSelection(IVwRootBox rootBox, bool fInstall)
{
int iAnchor = 0;
int iEnd = 1;
if (!m_fEndSet)
{ // No end information set, so use iAnchor as end
iEnd = iAnchor;
}
if (m_selInfo[iEnd] == null)
{
m_selInfo[iEnd] = new SelInfo(m_selInfo[iAnchor]);
}
// we want to pass fInstall=false to MakeTextSelection so that it doesn't notify
// the RootSite of the selection change.
IVwSelection vwSelAnchor = rootBox.MakeTextSelection(
m_selInfo[iAnchor].ihvoRoot, m_selInfo[iAnchor].rgvsli.Length,
m_selInfo[iAnchor].rgvsli, m_selInfo[iAnchor].tagTextProp,
m_selInfo[iAnchor].cpropPrevious, m_selInfo[iAnchor].ich, m_selInfo[iAnchor].ich,
m_selInfo[iAnchor].ws, m_selInfo[iAnchor].fAssocPrev, m_selInfo[iAnchor].ihvoEnd,
null, false);
IVwSelection vwSelEnd = rootBox.MakeTextSelection(
m_selInfo[iEnd].ihvoRoot, m_selInfo[iEnd].rgvsli.Length,
m_selInfo[iEnd].rgvsli, m_selInfo[iEnd].tagTextProp,
m_selInfo[iEnd].cpropPrevious, m_selInfo[iEnd].ich, m_selInfo[iEnd].ich,
m_selInfo[iEnd].ws, m_selInfo[iEnd].fAssocPrev, m_selInfo[iEnd].ihvoEnd,
null, false);
return rootBox.MakeRangeSelection(vwSelAnchor, vwSelEnd, fInstall);
}
/// <summary>
/// Given the GUI control or view ah, find and highlight the text indicated
/// via the location (level) path.
/// </summary>
/// <param name="lpath">Level path array.</param>
/// <param name="ah">Accessibility helper from the GUI control or view</param>
/// <returns>true if the selected string was retrieved.</returns>
private bool selectText(GuiPath lpath, AccessibilityHelper ah)
{
IVwRootBox rbox = ah.RootBox();
isNotNull(rbox, "view rootbox not found");
IVwSelection sel = null; // returned selection
// create a SelLevInfo[] array to the content using the model view levels.
int clevels = 0;
SelLevInfo[] rgvsli;
if (DrillToContent(lpath, out rgvsli, out clevels))
{
int ihvoRoot = 0; // first rootbox
int tagTextProp = 16002; // kflidStTxtPara_Contents
int cpropPrevious = 0;
int ichAnchor = m_at; // starting character number
int ichEnd = m_at + m_run; // ending character number in rgvsli[0].ihvo or ihvoEnd if it is not -1
int ws = 0;
bool fAssocPrev = false;
int ihvoEnd = -1; // paragraph # to end at, if it doesn't exist, get unspecified interop error
ITsTextProps ttpIns = null;
bool fInstall = true; // make it the view's default selection
//int iHeight = rbox.get_Height();
int iHeight = rbox.Height;
sel = rbox.MakeTextSelection
(ihvoRoot, clevels, rgvsli, tagTextProp, cpropPrevious, ichAnchor, ichEnd,
ws, fAssocPrev, ihvoEnd, ttpIns, fInstall);
isNotNull(sel, "failed to select text");
//areEqual(true, sel.get_IsValid(), "selection is not valid");
areEqual(true, sel.IsValid, "selection is not valid");
ITsTextProps ttp = spyOnSelection(sel);
if (ttp != null)
{
spyOnTextProps(ttp);
}
}
string strSeparator = "|";
ITsString tssFromApp;
sel.GetSelectionString(out tssFromApp, strSeparator);
ITsStreamWrapper tsw = TsStreamWrapperClass.Create();
//UCOMIStream strm = tsw.get_Stream();
System.Runtime.InteropServices.ComTypes.IStream strm = tsw.Stream;
// Copy the string to our address space.
ITsStrBldr bldr = TsStrBldrClass.Create();
bldr.ReplaceTsString(0, 0, tssFromApp);
ITsString tss = bldr.GetString();
int icchIndent = 2;
int iws = 0;
bool fWriteObjData = true;
//tsw.WriteTssAsXml(tss2, icchIndent, iws, fWriteObjData);
//ISilDataAccess da = rbox.get_DataAccess();
ISilDataAccess da = rbox.DataAccess;
//ILgWritingSystemFactory wsf = da.get_WritingSystemFactory();
ILgWritingSystemFactory wsf = da.WritingSystemFactory;
tss.WriteAsXml(strm, wsf, icchIndent, iws, fWriteObjData);
//m_text = tsw.get_Contents(); // XML formatted string
m_text = tsw.Contents; // XML formatted string
return(m_text != null);
}
